@Article{fdmp.2019.08361,
AUTHOR = {Hongwang Zhao, Yuanhua Chen, Xiaogang Liu},
TITLE = {Optimization of the Heat Dissipation Structure and Temperature Distribution in an Electric Vehicle Power Battery},
JOURNAL = {Fluid Dynamics \& Materials Processing},
VOLUME = {15},
YEAR = {2019},
NUMBER = {4},
PAGES = {293--305},
URL = {http://www.techscience.com/fdmp/v15n4/33871},
ISSN = {1555-2578},
ABSTRACT = { In  order  to  ensure  that  the  lithium-ion  battery  pack  keeps  good  working  performance  during  the  driving  of  electric  vehicle,  the  heat  generation  mechanism  and  heat  transfer  characteristics  of  lithium-ion  battery  are  analyzed.  The  power  battery  pack  of electric vehicle is simulated by advanced vehicle simulator. The simulation results of battery  pack  current  under  typical  cycle  conditions  and  the  heat  source  curve  of  lithium  ion  battery  are  obtained,  which  provide  data  for  the  simulation  of  heat  source  input  of  battery  temperature  field.  On  this  basis,  the  flow  field  and  temperature  fiel   d  of  the  original lithium-ion battery pack of electric vehicle are simulated by using computational fluid dynamics method. The influence of different air passage spacing and air inlet angle on  the  temperature  field  of  lithium  ion  battery  pack  was  analyzed. The  optimization  scheme of heat dissipation structure of lithium ion battery pack was put forward, and the numerical  simulation  analysis  of  the  optimization  scheme  was  carried  out. The  results  show  that  the  heat  dissipation  effect  of  the  heat  dissipation  structure  is  obviously  improved by choosing the appropriate air inlet and the combined air passage spacing, and it  is  beneficial  to  the  uniformity  of  the  temperature  of  the  single  battery.  The  maximum  temperature of the battery pack is reduced by 3.8°C, and the temperature difference of the battery pack is reduced by 2.2°C.},
DOI = {10.32604/fdmp.2019.08361}
}